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Pros

Pro

Advanced autofocus

D5 has 153 AF points of which you can select 55. 99 AF points are cross-type (of which 35 are selectable). 15 AF points work with f/8 lenses (of which 9 are selectable). The autofocus works down to LV -4.

Autofocus is amazingly fast at 14 frames per second with top of the class accuracy (in tests performed by Tony Northrup it was only second to 1DX Mark II in terms of how many shots were in focus having just 6% fewer of shots be in focus).

Pro

Huge ISO range

D5 has a native ISO range of 100 to 102,400 which can be expanded from 50 to 3,280,000.

Pro

Durable

Pro

Can shoot stills during video

Pro

Can automatically detect faces and focus on them

Pro

Great high ISO imaging capabilities

Cons

Con

Image quality is surpassed by much cheaper cameras

Nikon puts D5's AF capabilities above everything else to the point where cameras that cost less than half the price (like Nikon's own D810) have clearer, sharper images with higher dynamic range and higher resolution.